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[Q] something about lowering the voltage

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a1317931279
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Question [Q] something about lowering the voltage

Lowering the coltage can help with heat and battery.I flashed the ElementalX kernel,but flar2 didn't tell much about lowering the voltage.
My PVS number is 3,so how much voltage should be lowerd?Not only the minimum,but also others.
I may lower it too much(-100mv),then I got a reboot while playing videos.
Thank you
 
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Quote:
Originally Posted by a1317931279 View Post
Lowering the coltage can help with heat and battery.I flashed the ElementalX kernel,but flar2 didn't tell much about lowering the voltage.
My PVS number is 3,so how much voltage should be lowerd?Not only the minimum,but also others.
I may lower it too much(-100mv),then I got a reboot while playing videos.
Thank you
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Quote:
Originally Posted by a1317931279 View Post
Lowering the coltage can help with heat and battery.I flashed the ElementalX kernel,but flar2 didn't tell much about lowering the voltage.
My PVS number is 3,so how much voltage should be lowerd?Not only the minimum,but also others.
I may lower it too much(-100mv),then I got a reboot while playing videos.
Thank you
Overclocking will effect the heat too. The Voltage can be adjusted but most of the time don't need to be fooled with.

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There is very little effect on battery by lowering the CPU voltage. There is a thread somewhere here on XDA where they do out the math and the energy savings from reducing CPU voltage are like 1% or something super low like that. The CPU uses very little power when you compare it to everything else in the tablet, like the 1080p screen, wireless, etc etc etc. Additionally, the overall power used by the CPU is based on both the clock speed and voltage, with high clock speeds being the major contributor to power consumption. Using a power scheme which does not ramp the CPU frequency as quickly or even underclocking the cpu will yield much greater power savings and heat reduction than voltage reduction ever will.
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well,I mean,the volatage of CPU,not the battery...
anyway,thank you
 
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Overclocking will effect the heat too. The Voltage can be adjusted but most of the time don't need to be fooled with.

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I just use the stock frequency.I like reading,high performance isn't needed,so I just want to increase some battery life,some people in tieba told me that lowering cpu voltage can make some great help...
 
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Originally Posted by skrypj View Post
There is very little effect on battery by lowering the CPU voltage. There is a thread somewhere here on XDA where they do out the math and the energy savings from reducing CPU voltage are like 1% or something super low like that. The CPU uses very little power when you compare it to everything else in the tablet, like the 1080p screen, wireless, etc etc etc. Additionally, the overall power used by the CPU is based on both the clock speed and voltage, with high clock speeds being the major contributor to power consumption. Using a power scheme which does not ramp the CPU frequency as quickly or even underclocking the cpu will yield much greater power savings and heat reduction than voltage reduction ever will.

oh,it make sense,some people in tieba told me that lowering cpu voltage can make some great help with heat and battry life,look like they misled me,I have nerver noticed the diffrences in heat and battery, only the unstability is obvious...
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Quote:
Originally Posted by skrypj View Post
There is very little effect on battery by lowering the CPU voltage. There is a thread somewhere here on XDA where they do out the math and the energy savings from reducing CPU voltage are like 1% or something super low like that. The CPU uses very little power when you compare it to everything else in the tablet, like the 1080p screen, wireless, etc etc etc. Additionally, the overall power used by the CPU is based on both the clock speed and voltage, with high clock speeds being the major contributor to power consumption. Using a power scheme which does not ramp the CPU frequency as quickly or even underclocking the cpu will yield much greater power savings and heat reduction than voltage reduction ever will.
Especially with all things considered, the CPU is mostly loafing along. It doesn't start drawing power until it's being asked to work. Lowering the voltage is asking for a laggy device when the chips are down.


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I highly suggest lowering the Cpu clock speeds if you want to affect the heat and battery. Lowering the cap speed for the device doesn't allow it to work hard enough to reach speeds to really make it toasty. Same goes with battery life. For example, I'm sure that you can walk much farther than you can run.

Changing the voltage is the equivalent of running down a new street...you have to test and test before you find a good voltage. Every device is different. Someone else's device might do great with the exact same settings that are making your device reboot. Do a lot of reading if you are certain that you want to change the voltages.

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